(;GM[1]FF[4]SZ[19]
GN[Extension cum attack]
PC[http://senseis.xmp.net/?BQM213/Summary]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM213/Summary

Extension cum attack]
PL[W]

AB[oc][qd][qj][bl][bm][jm][pn][co][ko][cp][jp][lp][pp][cq][lq][cr]
AW[dd][bj][dj][cm][dn][ln][do][lo][dp][mp][dq][iq][jq][nq][dr]
LB[rd:w][qh:w][ql:w]

;W[oo]C[W1]MN[1]
;B[po]C[B2]MN[2]
;W[ll]C[W3]MN[3]
;B[jk]C[B4]MN[4]
;W[lj]C[W5]MN[5]
;B[ji]C[B6]MN[6]
;W[jd]C[W7]MN[7]

;LB[rd:w][qh:w][ql:w]
)
